Midland County, MI radon potential

EPA's own radon map rates Midland County zone 3 - low potential, predicting a county-wide average indoor level below 2 pCi/L. Rank it against the rest of the country and Midland County lands in the 25th percentile for radon potential.

How Midland County compares

Midland County, Michigan is home to about 84,022 people across 518.434 square miles. That works out to roughly 162 people per square mile. Within its own EPA zone, Midland County is bigger by population than 77% of the counties that share it. EPA's geology-based Region 5 groups Midland County with 523 other counties nationally sharing its underlying rock and soil profile.

What this actually means for a house in Midland County

At Zone 3, Midland County's predicted county average is under the national indoor average (~1.3 pCi/L) and well below EPA's 4 pCi/L action level — outdoor air nationally runs about 0.4 pCi/L for comparison. A Zone 3 label describes Midland County's average, not any one basement or slab in it — testing is still the only way an individual homeowner actually finds out.

If Midland County tests above the action level

A short-term test kit is the standard first step and typically costs far less than mitigation itself. If a test comes back at or above 4 pCi/L, a radon mitigation system for a typical home runs roughly $800–$2,500 (around $1,200 for a common single-family install), driven mainly by foundation type, not by county.

Find Michigan's state radon program

For Midland County, an ongoing number beats a one-time test - a Airthings radon monitor tracks Midland County's levels over time. RadonZoneCheck earns a commission there, at no extra cost to you. Code RADONZONE-10OFF takes 10% off at checkout.

Where Midland County's figures come from

Every figure on this page traces to EPA's own Map of Radon Zones and Census data, documented in the methodology guide. Whatever zone Midland County carries, the zone explainer covers what it does and doesn't tell you about any one house.